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參數(shù)資料
| 型號(hào)： | LS138 |
| 廠商： | System Logic Semiconductor Co., Ltd. |
| 英文描述： | 3-to-8-Line Decoder/Demultiplexer |
| 中文描述： | 3至8線譯碼器/解復(fù)用器 |
| 文件頁(yè)數(shù)： | 2/3頁(yè) |
| 文件大小： | 33K |
| 代理商： | LS138 |
SL74LS138
S ystem Logic
Semiconductor
SLS
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
7.0
V
V
IN
Input Voltage
7.0
V
V
OUT
Output Voltage
5.5
V
Tstg
Storage Temperature Range
-65 to +150
°
C
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V
CC
Supply Voltage
4.75
5.25
V
V
IH
High Level Input Voltage
2.0
V
V
IL
Low Level Input Voltage
0.8
V
I
OH
High Level Output Current
-0.4
mA
I
OL
Low Level Output Current
8.0
mA
T
A
Ambient Temperature Range
0
+70
°
C
DC ELECTRICAL CHARACTERISTICS
over full operating conditions
Guaranteed Limit
Symbol
Parameter
Test Conditions
Min
Max
Unit
V
IK
Input Clamp Voltage
V
CC
= min, I
IN
= -18 mA
-1.5
V
V
OH
High Level Output Voltage
V
CC
= min, I
OH
= -0.4 mA
2.7
V
V
OL
Low Level Output Voltage
V
CC
= min, I
OL
= 4 mA
0.4
V
V
CC
= min, I
OL
= 8 mA
0.5
I
IH
High Level Input Current
V
CC
= max, V
IN
= 2.7 V
20
μ
A
V
CC
= max, V
IN
= 7.0 V
0.1
mA
I
IL
Low Level Input Current
V
CC
= max, V
IN
= 0.4 V
-0.4
mA
I
O
Output Short Circuit Current
V
CC
= max, V
O
= 0 V
(Note 1)
-20
-100
mA
I
CC
Supply Current
V
CC
= max
Outputs enabled and open
10
mA
Note 1: Not more than one output should be shorted at a time, and duration should not exceed one second.
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